these 6 derivations will be built:
  /nix/store/my5nrbbc7pf4chvnkrfzqy74kb62ybvz-iets-0.1.0.drv
  /nix/store/qf8qdpnjarsqmaqcsh102jmj5cbpr0ds-closure-info.drv
  /nix/store/c4pjd5szhp5izwb1lmgf04yf758ay7lf-test-script.drv
  /nix/store/f51k69wlg4g816jhbifj87wxjsjnjwlc-driverConfiguration.json.drv
  /nix/store/y4bnkrgzzrvyml1ck2g1nrffdqwgrjy9-nixos-test-driver-iets-cachetest.drv
  /nix/store/yyqwhgdhkayxmzs7gy2aqwdw02v04iw2-container-test-run-iets-cachetest.drv